According to Gram Research analysis, a 2026 randomized controlled trial of 218 older adults found that eating extra protein during a hospital stay after a broken bone did not reduce complications, improve walking ability, or shorten recovery time compared to standard hospital food. The study showed that malnutrition before the fracture was linked to worse outcomes overall, but simply adding protein during hospitalization wasn’t enough to change this. Researchers concluded that nutritional support needs to continue long after patients leave the hospital as part of a comprehensive recovery plan.
Researchers studied 218 older adults (average age 82) who broke bones and were admitted to a hospital to see if eating more protein would help them recover better. Half of the patients who were malnourished received a high-protein diet during their hospital stay, while the other half ate the regular hospital food. Surprisingly, the extra protein didn’t reduce complications, help patients walk better, or get them home sooner. However, the study found that being malnourished before the fracture was connected to worse outcomes overall. This suggests that simply adding protein during the hospital stay isn’t enough, and doctors may need to help patients with nutrition and recovery for much longer after they leave the hospital.
Key Statistics
A 2026 randomized controlled trial of 218 older adults (average age 82) found that a high-protein diet during hospitalization for broken bones did not reduce medical complications, which occurred in 45% of patients regardless of diet type.
In the NuTra trial of 218 older trauma patients, 45.9% screened positive for malnutrition risk, and these patients were significantly more likely to require institutional care after discharge rather than return home, independent of whether they received extra protein.
Research from the 2026 NuTra trial showed that patients at nutritional risk had higher rates of existing health conditions and greater frailty than well-nourished patients, suggesting malnutrition is a marker of broader vulnerability rather than an isolated problem.
A 2026 study of 218 older adults with fractures found that blood albumin levels decreased and inflammation markers increased during hospitalization in all patients, with no differences between those receiving high-protein diets and those on standard hospital food.
The Quick Take
- What they studied: Whether eating extra protein during a hospital stay helps older adults recover better after breaking bones from falls or minor injuries.
- Who participated: 218 people aged 70 and older (average age 82, mostly women) who were admitted to a major trauma hospital with broken bones. About half were malnourished or at risk for malnutrition when they arrived.
- Key finding: Patients who received a high-protein diet during their hospital stay had no better outcomes than those eating regular hospital food. Both groups had similar rates of infections, complications, and ability to walk after discharge.
- What it means for you: If you’re an older adult recovering from a broken bone, simply eating more protein in the hospital may not be the key to faster recovery. Better nutrition support may need to continue long after you leave the hospital, and doctors should look at your overall health picture, not just protein intake.
The Research Details
This was a randomized controlled trial, which is considered one of the strongest types of medical research. Researchers enrolled 218 older adults with broken bones at a Level I trauma center (a major hospital that handles the most serious injuries). First, they tested everyone’s nutritional status using two screening tools to identify who was malnourished or at risk. Patients who screened positive for malnutrition were randomly divided into two groups: one received a high-protein diet (1.5 to 2.0 grams of protein per kilogram of body weight daily), while the other received the standard hospital diet. A third group of well-nourished patients was observed but not part of the intervention, serving as a comparison group. The researchers then tracked what happened to all three groups during their hospital stay and at discharge.
This research approach is important because it tests whether a simple, practical intervention (adding protein to meals) could improve outcomes for a vulnerable population. Older adults who break bones often struggle with malnutrition, which can slow healing and lead to complications. By randomly assigning patients to different diets, researchers could see if the protein made a real difference, rather than just comparing people who happened to eat differently. The study also measured multiple important outcomes like infections, walking ability, and where patients went after leaving the hospital, giving a complete picture of recovery.
This study has several strengths: it was a randomized controlled trial with a clear comparison group, it measured multiple important health outcomes, and it included a large sample of real patients from a major hospital. However, there are some limitations to consider. The study only looked at what happened during the hospital stay and at discharge, not long-term recovery. It was conducted at a single hospital, so results might differ in other settings. The study was also registered after it started (retrospectively), which is less ideal than registering before beginning. Additionally, the malnourished and well-nourished groups were quite different in terms of overall health, which made it harder to isolate the effect of protein alone.
What the Results Show
Among the 218 patients studied, 100 screened positive for malnutrition risk and were randomly assigned to either high-protein (46 patients) or standard diet (54 patients), while 118 well-nourished patients served as a reference group. Medical complications occurred in 45% of all patients, but there were no significant differences between the high-protein group and the standard diet group. Surgical site infections, length of hospital stay, and in-hospital death rates were similar across both groups. When researchers looked at functional mobility (the ability to walk and move around), patients in the well-nourished reference group were more likely to be independently mobile at discharge and to go home, while patients at nutritional risk more often needed to go to nursing homes or rehabilitation facilities, regardless of which diet they received. Blood tests showed that albumin (a protein in the blood that indicates nutritional status) decreased and inflammation markers increased during hospitalization in all groups, with no differences between the high-protein and standard diet groups.
The study found that patients at nutritional risk had more existing health conditions and higher surgical risk scores than well-nourished patients, indicating they were generally frailer and sicker before their fractures. In statistical analysis, having more existing health conditions was independently associated with where patients went after discharge (home versus institutional care), but the type of diet they received during hospitalization was not. This suggests that overall health status and frailty, rather than protein intake during the hospital stay, determined recovery outcomes. The findings indicate that malnutrition is a marker of broader vulnerability in older adults, not just a standalone nutritional problem.
Previous research has suggested that malnutrition is common in older adults with fractures and is linked to worse outcomes. This study confirms that malnutrition is indeed associated with more complications and less independence after discharge. However, it challenges the assumption that simply increasing protein intake during the acute hospital phase is enough to reverse these problems. The findings align with emerging evidence suggesting that nutritional interventions may need to be part of longer-term, comprehensive rehabilitation programs rather than short-term fixes during hospitalization. This study adds important evidence that timing and duration of nutritional support may matter as much as the amount of protein provided.
This study has several important limitations. First, it only followed patients during their hospital stay and at discharge, not during the weeks and months of recovery afterward, so we don’t know if protein helped with longer-term healing. Second, the study was conducted at a single hospital, so results may not apply to other hospitals or healthcare settings. Third, the malnourished and well-nourished groups were quite different in overall health from the start, making it difficult to separate the effect of protein from the effect of other health problems. Fourth, the study was registered after it began, which is less rigorous than pre-registration. Finally, the researchers couldn’t measure whether patients actually ate all the protein they were supposed to, so compliance with the diet may have varied.
The Bottom Line
Based on this research, simply adding extra protein to meals during a hospital stay after a fracture is not enough to improve recovery in older adults. Instead, nutritional care should be part of a comprehensive, long-term rehabilitation plan that continues after discharge and addresses overall health and frailty. Doctors should screen older adults for malnutrition before and after fractures, but should recognize that malnutrition is often a sign of broader health problems that need attention beyond nutrition alone. Confidence level: Moderate. This is a well-designed single study, but more research in different hospitals and with longer follow-up is needed.
This research is most relevant to older adults (70 and older) recovering from broken bones, their families, and healthcare providers caring for them. It’s particularly important for people who are already malnourished or frail. However, this doesn’t mean protein is unimportant; rather, it suggests that protein alone during hospitalization isn’t a complete solution. People with other types of injuries or younger adults may have different nutritional needs. If you’re recovering from a fracture, talk with your doctor or a dietitian about a nutrition plan that extends beyond your hospital stay.
This study only measured outcomes during hospitalization and at discharge, so we don’t know how long it takes to see benefits from improved nutrition. Recovery from fractures in older adults typically takes weeks to months, so any nutritional support should be planned for the long term, not just the hospital stay. You should expect gradual improvement in strength and mobility over several weeks to months, with the most progress typically occurring in the first 3 to 6 months after discharge.
Frequently Asked Questions
Does eating more protein help older adults recover faster from broken bones?
A 2026 trial of 218 older adults found that extra protein during hospitalization did not speed recovery or reduce complications. However, malnutrition before the fracture was linked to worse outcomes, suggesting nutrition matters but requires long-term support beyond the hospital stay.
How much protein should an older adult eat after a hip or leg fracture?
The study tested 1.5 to 2.0 grams of protein per kilogram of body weight daily, but this alone didn’t improve short-term outcomes. Talk with your doctor or dietitian about your specific protein needs as part of a comprehensive recovery plan that extends months after discharge.
Why do some older adults struggle to recover from fractures?
Research shows malnutrition and frailty (overall weakness and vulnerability) are major factors. The 2026 NuTra trial found that malnourished older adults had more existing health conditions and were more likely to need institutional care after discharge, indicating recovery depends on overall health, not just nutrition.
Can nutritional supplements help older adults heal from broken bones?
This study focused on diet during hospitalization and found it wasn’t enough alone. Recovery likely requires ongoing nutritional support combined with physical therapy and rehabilitation for weeks to months after discharge, not just short-term supplementation.
What should older adults do to recover better from a fracture?
Based on this research, work with your healthcare team on a long-term plan that includes adequate nutrition, physical therapy, and rehabilitation extending well beyond your hospital stay. Address overall health conditions and frailty, not just protein intake, for the best recovery outcomes.
Want to Apply This Research?
- Track daily protein intake (in grams) and functional mobility (ability to walk, climb stairs, or perform daily activities) over weeks and months after discharge. Record these weekly to see patterns in recovery that extend beyond the hospital stay.
- Work with a dietitian to create a personalized nutrition plan that continues for at least 3 to 6 months after leaving the hospital, rather than just during hospitalization. Include protein-rich foods at each meal and track whether you’re meeting your daily protein goal. Combine this with physical therapy or rehabilitation exercises prescribed by your healthcare team.
- Use the app to log weekly check-ins on: (1) protein intake at meals, (2) ability to perform daily activities independently, (3) energy levels, and (4) any complications or setbacks. Share this data with your doctor or rehabilitation team during follow-up visits to adjust your recovery plan as needed. This long-term tracking approach aligns with the study’s finding that recovery requires ongoing support beyond the hospital phase.
This research describes findings from a single hospital study and should not replace personalized medical advice from your doctor. If you are an older adult recovering from a fracture or concerned about malnutrition, consult with your healthcare provider or a registered dietitian to develop a nutrition and recovery plan tailored to your specific health needs. The study only measured short-term outcomes during hospitalization and at discharge; long-term effects of protein supplementation are not addressed. Always follow your doctor’s recommendations for rehabilitation and nutrition after a fracture.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.